<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>VUE 更专注于业务（数据 + 配套的语法）</title>
</head>
<body>
    <div id="app">
        <h2>{{title}}</h2>
  <input type="text" id="todo-input" v-model="title">
    </div>
  <script  scr="https://lf26-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue/3.2.31/vue.global.min.js"></script>
  <script>
   const App = {
    // vue 2.0
 data(){
    return {
        title:""
    }
 }
   }
   Vue.creatApp(App).mount('#app')
  </script>
</body>
</html>